blowing tubes

i was playing a show, using this kids amp, and in the middle of a song the volume started getting lower and lower and then a tube blew out. i look at the amp, which i hadn't touched at all, and the volume and gain were cranked. so he wants me to pay for it, and i'm wondering, can anyone come up with a legitimate reason why i should and how it is my fault when i didnt touch his volume or gain haha

Did they go BOOM, or did they just stopped working and made a weird sound?Has in, did they explode, orAnd if i was you i wouldent pay it, i mean, the tube would end up not working after a while anyways, and if its his amp, he cant really complain can he?

the sound was distorted a little then it slowly diminished into silence hahaand its his dads amp, and his dads the kinda guy who would beat his kid, and its a mesa amp, so he has all the reason to be pissed hahabut really i'm thinking this is a timing thing, if anyone else was on the amp at that time it would have happened

Tell him that if he didn't want his tubes to go a couple of days sooner than they would have had he not lent it. He shouldn't have lent it out in the first place. It is his amp and his responsibility for making sure it is in proper working order and that the tubes aren't dying. Personally I wouldn't give him a penny. But then again I'm a dick.

the sound was distorted a little then it slowly diminished into silence hahaand its his dads amp, and his dads the kinda guy who would beat his kid, and its a mesa amp, so he has all the reason to be pissed hahabut really i'm thinking this is a timing thing, if anyone else was on the amp at that time it would have happened

You're lucky it was a Mesa amp. Those things are built very well. Worst case scenario the reverb section in the amp could be fried. Unlikely, but possible.